Home / 15,579.07-21,498.30-8,504.12

Finding the Fourth Proportional to 15,579.07, 21,498.30 and 8,504.12

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Solution

The fourth proportional to 15,579.07, 21,498.30 and 8,504.12 is: 11,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.07 : 21,498.30 = 8,504.12 : x
  2. Step 2: Convert to fraction form
    15,579.07/21,498.30 = 8,504.12/x
  3. Step 3: Cross multiply
    15,579.07x = 21,498.30 × 8,504.12
  4. Step 4: Simplify right side
    15,579.07x = 182,824,176.74
  5. Step 5: Solve for x
    x = 182,824,176.74/15,579.07
  6. Step 6: Final answer
    x = 11,735.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.